Question

Thelma and Laura start a lawn-mowing business and buy a lawnmower for $225. They plan to charge $15 to mow one lawn. They would like to earn a profit of at least $750

Part A: Define a variable to represent the unknown quantity in this situation.

Part B: Write an inequality to represent the amount of money charged per lawn, the cost of the lawnmower and the profit.

Answer 1

I got 65

Explanation:

The profit will be given as:

P=$15x−$225

(where we subtracted the cost of the mower) so that P=$750

x will be the required number of needed lawns.

We need to solve:

$750=$15x−$225

rearranging:

x=$750+$225 / $15 =65 lawns